Knife sharpener w. grades

"High-quality knives also need to be regularly sharpened. Sharpening steel requires a certain amount of skill, so knife sharpeners are a good option for inexperienced users. WMF knife sharpeners are excellent. They have guides that prevent the blade from slipping between two ceramic plates - some models have a gradual adjustment - ensuring precise sharpening. WMF's sturdy knife sharpeners and non-slip bottom coating guarantee high-level safety. WMF knife sharpeners are available in various models with different functions tailored to individual needs. 2 slots for coarse and fine sharpening. Durable ceramic plates."